客氣
polite;courteous;modest
他對人很～。He is very polite to people./雙方～了一番，就開始談?wù)隆fter a few words of courtesy,they got down to business./（對來客）別～。Please don’t stand on ceremony. or:Make yourself at home.（對主人）別～。Please don’t bother./您太～了。You are very kind indeed;It’s very kind of you./對待顧客很～treat customers with civility /～話polite words;words of courtesy
客氣kè qì
pathogenous factors